本文介绍了一个自定义的MvvmCross值转换器，用于将Stream类型的流数据转换为UIImage对象，通过从流中加载数据并解析为PNG格式的图像。
public class StreamTypeToImageValueConverter: MvxValueConverter<Stream,UIImage>
{
protected override UIImage Convert(Stream value, Type targetType, object parameter, CultureInfo culture)
{
if (value != null)
{
var image = UIImage.LoadFromData(Foundation.NSData.FromStream(value));
ParseService.Stream = image.AsPNG().AsStream();
return image;
}
return null;
}
{
protected override UIImage Convert(Stream value, Type targetType, object parameter, CultureInfo culture)
{
if (value != null)
{
var image = UIImage.LoadFromData(Foundation.NSData.FromStream(value));
ParseService.Stream = image.AsPNG().AsStream();
return image;
}
return null;
}
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